Transmission/generator coupling

Abstract

A wind turbine, including a transmission, a transmission shaft acting as transmission output, a generator, a generator shaft acting as generator drive and a coupling connecting the transmission shaft and the generator shaft to one another, is characterized in that the generator shaft is designed as a hollow shaft, the coupling is disposed such that the coupling is connected to the generator shaft on the side of the generator facing away from the transmission, and the transmission shaft passes through the generator shaft and is connected to the coupling.

The invention claimed is: 
     
       1. A wind turbine comprising:
 a transmission, 
 a transmission shaft acting as a transmission output, 
 a generator, 
 a generator shaft acting as a generator drive, and 
 a coupling connecting the transmission shaft and the generator shaft to one other, wherein 
 the generator shaft is a hollow shaft, 
 the coupling is connected to the generator shaft on a side of the generator facing away from the transmission and constitutes a slip coupling, and 
 the transmission shaft passes through the generator shaft and is connected to the coupling, 
 characterized in that a coupling part connected to the transmission shaft constitutes a brake disk cooperating with a disk brake, a slip connection for the coupling being arranged between the coupling part connected to the transmission shaft and another coupling part connected to the generator shaft. 
 
     
     
       2. The wind turbine according to  claim 1 , characterized in that the generator shaft is supported on a journal that is arranged concentrically inside the generator shaft, the journal being of hollow design and the transmission shaft being guided through a hollow space of the journal. 
     
     
       3. The wind turbine according to  claim 2 , characterized in that the transmission shaft is supported by means of the coupling in a generator shaft bearing as a result of a connection of the transmission shaft to the generator shaft. 
     
     
       4. The wind turbine according to  claim 2 , characterized by a sensor detecting a slipping of the coupling. 
     
     
       5. The wind turbine according to  claim 2 , characterized by a sensor for detecting a slip angle for each slip process. 
     
     
       6. The wind turbine according to  claim 1 , characterized in that the transmission shaft is supported by means of the coupling in a generator shaft bearing as a result of a connection of the transmission shaft to the generator shaft. 
     
     
       7. The wind turbine according to  claim 6 , characterized by a sensor detecting a slipping of the coupling. 
     
     
       8. The wind turbine according to  claim 6 , characterized by a sensor for detecting a slip angle for each slip process. 
     
     
       9. The wind turbine according to  claim 1 , characterized by a sensor detecting a slipping of the coupling. 
     
     
       10. The wind turbine according to  claim 9 , characterized by a data processing device connected to the sensor for outputting a warning signal when a predetermined detected slipped frequency and/or a predetermined detected slip angle are exceeded. 
     
     
       11. The wind turbine according to  claim 10 , characterized in that the data processing device triggers a power reduction or a switching-off of the turbine. 
     
     
       12. The wind turbine according to  claim 9 , characterized by a sensor for detecting a slip angle for each slip process. 
     
     
       13. The wind turbine according to  claim 1 , characterized by a sensor for detecting a slip angle for each slip process. 
     
     
       14. The wind turbine according to  claim 13 , characterized by a data processing device connected to the sensor for outputting a warning signal when a predetermined detected slipped frequency and/or a predetermined detected slip angle are exceeded. 
     
     
       15. A wind turbine comprising:
 a generator including a hollow generator shaft establishing a generator drive; 
 a transmission including a transmission shaft establishing a transmission output, said transmission shaft extending through the generator shaft; 
 a coupling connecting the transmission shaft and the generator shaft, said coupling constituting a slip coupling which enables relative rotation between the transmission shaft and the generator shaft, said coupling including a first coupling part connected for co-rotation to the transmission shaft and a second coupling part connected for co-rotation to the generator shaft, said first coupling part including a brake disk; and 
 a disk brake for engaging the brake disk to selectively limit rotation of both the brake disk and the transmission shaft, while still enabling relative rotation between the transmission shaft and the generator shaft through the slip coupling. 
 
     
     
       16. The wind turbine of  claim 15 , wherein the coupling is located on a side of the generator facing away from the transmission. 
     
     
       17. A coupling configured to connect a hollow, generator shaft and a transmission shaft, which extends through the hollow, generator shaft, of a wind turbine, said coupling comprising: a first coupling part configured to be connected to the transmission shaft, a second coupling part configured to be coupled to the generator shaft, a brake disk arranged on the first coupling part, and a disk brake configured to limit rotation of the brake disk while the coupling establishes a slip coupling configured to permit relative rotation between the transmission shaft and the generator shaft. 
     
     
       18. The coupling of  claim 17 , wherein the first and second coupling parts are located on a side of a generator having the generator shaft facing away from a transmission having the transmission shaft.